Products Description

Black Hex Head Screws are fasteners with a special finish that is notable for its hexagonal head design with a black-appearing surface. This design is enhanced by specific coatings or treatments for corrosion and wear resistance.

In terms of material selection, black hexagon head screws have a variety of options to meet different needs. The common carbon steel material with good strength and toughness is preferred for many applications. Through reasonable control of carbon content and appropriate heat treatment process, carbon steel black hexagon head screws can withstand a certain range of tensile force, pressure and shear force.

It plays an important role in the assembly of general mechanical equipment, furniture manufacturing, and some non-critical part connections in the construction industry. For scenarios that require more strength and durability, alloy steel material is more suitable. Alloy elements such as chromium, molybdenum and nickel added to alloy steel significantly improve the overall performance of the screws.

To purchase black hex head screws, please visit the following website for detailed information and pricing.

https://www.swftyfastener.com/contact-us

Parameter

Standard	DIN933/931
Name	Black hexagon head screws
Material	carbon steel and alloy steel, etc.
Grade	Grade 4.8, Grade 5.8, Grade 8.8
Nominal diameter	M2-M48
Pitch	0.4-5
Surface treatment	BLACK
Alias	Black hexagon bolts

Our Products

Common Materials

1. Low Carbon Steel

Material: Q235, 1010, 1018, 1022
Strength Grade: Grade 4.8
Characteristics: Economical, easy to process, moderate strength
Applications: General equipment, covers, furniture, lightweight frames

2. Medium Carbon Steel

Material: 35#, 45# steel
Strength Grade: Grade 8.8
Characteristics: Most common after blackening, moderate strength
Applications: Machine tools, motors, flanges, main bodies of mechanical equipment

3. Alloy Steel